He acts like a free person.

He was banished from the village as a leper.

After he solved the problem, he said, 'It's like seeing the true form of a ghost or a withered silver grass,' meaning things are not as scary as they seem.

He is interested in geometrical shapes.

He is conducting research on historical kana usage.

He often thinks about problems from a humanitarian perspective.

His company is facing the risk of a hostile takeover.

He is spending a lot of time on experimental research.

That plan is too impractical, it's difficult to implement.

His plan was so unrealistic that no one could believe it.